Mining-machine.



L. P. HESS.

MINING MACHINE.

1 APPLICATION FILED APR.11 1910. 1,006,21 8. l

1 N Q S A Witnesses v u v Inventor.

Atto rn eys 2 SHEETS-SHEET 1.

L. I'. HESS.

MINING MACHINE.

APPLXGATION FILED A1 ,R.11,191o.

Patented 0G13. 17, 1911.

2 SHBBTSSHEET 2.

Witnesses nlarljy `for mining coal. -"l`h e object of thepresent 1 3eit. known that I, Loiiis Fl 11e-Seya citizen of the- United States'fresidingf at the.followingI is a specification.

ments in mining in a'eliin'cls;I designed' particelongated groove orpocket iii li l1e'coal veinchine is cl1a.i :ic,tci'i' /.erl. by'itsfimplicityofA structure andhghtjncse inn'ei'gth while-at' the seme timebeing very ellicientinopera- 1.11 geh anton'iaticin ol'ieration h ntposselesing the '7' capability. of heing elevated 'or clcpreSsedto avoidany une venncsS-I in 'the' coal `@ein and furthermore presenting nomovii'ig parts which are liable to injure workmen. Because of thecxtreme simplicityof the maclnne the cost ot' maintenance ismredncedtoaminimnm and the machine requires no attention except in starting andstopping a.nd` 1n transportation trom one location to another.

.The intention l from a consideration .of the follow1ngfdetaileddescription taken in connection with the accompanying drawingsin`\\'liicli drawingsz Figure 1 is a longitudinal central section of themachmcgwith parts broken away.'

Fig. Q is a cross section'on the -line .A-B

. Fiji:-

tion and broken away to VShow fthe' Am'eavn'iS fdr controlling-thefeed`of thema'chme. toy

of Fig. "1. Fig. 3 is a' detail sect-ion 'of "a portion 4of the means.for fccding'tlie Ina.-v

chine. YF isa plan vic'w'of the machine '.Sith parts broken 4:uvayjandfm Section'. 5 rsf-a 51dejelevation'with parts in' 'sec-' .the work andthe' withdra-wal1of Vthe eutting end o'f the machine from thefi'vork.

1,Referring to the drawings there is shown 'hath-fin ipenings normally"covered .by doors or-= the.

` relationto' la@crosspiecel "groovesltl formedfin the-.side pieces15.1: j' lMounted bearing -blocksf'in the c erringe :15, l''As.- aworm21 carried the gUNl-fr-ED ,STATES l PAfl-EN'lf-IQEHGE. F. nessi i orimwis irmGiNI' BooNEpF-HAWKS NEsL-wne'eyrnime.

specimen@- uf Letters .Patent Patented O ct. y1 7 '1911. AiipiicetimfmeaApr/i1 V11, lalewsgrierno. 554,781;`

side membersV 1, 2 ea'clrixiacle up ofen outmovingl part-'s' are'protected-dn. such manner-- that workmen cannotjcme incontact-.therewith and be injiired.t he'reby.: L

V Access, to the interior of ,the cssing is ractice, throi'igh suitable.smell like thereby lbricant may vb esupplied to i -t'hemovingpare'f-The machine capable' of cn t ting a groove or elongated pock'etin thecoal close: tothe 'floor of th'e tnnnelf \\'l ietli`e1 in' 'the isidewall ofthe tunnel or in tl'ie b1 i't of the tunnel7 themachineheilig` velVitlii'n the casing? adjacent thefiinner platee 4 ofVthe sidememb'ersand located near the-bottoni 'of the, caing aretracls 8etenled longitudinalllw` of: the'. ca sing .and

l'iio'h'er attlierearend'tl'ian iitythe front end. he frontnend ofthe-casing, 'that is the end presentedtofthe'work, is-pro'vided Withano'p'ening or passage- Way 49 for .a cntter 'head -1( )'vijhich isshown as'of an elongated conicalfor taper form with a spiral web orledge carrying e; continuons Vseries of cutters and ftermmating at. thelfront end in an augerli'ke 'cutter -11.= This cutter Vhead is l-carried'by a. shaft'lQ'atta'chedto. the cutter headfat "the Wider ,or near endthereof in l j theffixis of the cutter head so -that when the will hebest 'understood- 'nhle 'hearing 11k-mounted on a 'carriage gnade np ofc'side' members 15l andcross members 16, the sidemembers heing rovidedat.their adapted to the tracks 8 sothatlthefcarriage may s'lide'id ong. the'tracks fox-, -expurpose which will-hereinafter V: ippeanf. j

-fThe bearing 14 `1 s monnted'infentrzilized Sliding in tothe fullextent designed.

through said ivorm the shaftcarries another pinion 22 engaged.-

bya worm pinion 23 on the armature shaft of an electric motor 24, thepurposeof the motor being to give .rotary movel'nent to the shaft 12 andthe pinionf22 is elongated so that the shaftmay/have alimited longitudinal movement/without disengagement' l from the pini'o/n 23.

The Worm 21 engages a worm pinion 25 on a shaft 26 traversing thecarriage 15, 16 and having bearings '1n the side members' 15throughvrhich the shaft 26 extends at both ends and enters the interiorsofthe members 1l and 2\through elongated slots 27 in the plates 4, theseslotsbeing suiiiciently long to permit a 4movement of thecarriage15,

16 sutlicient to completely house the 4cutter head 10 in the casing orto projectthe same The shaft 26 carries cams or eccentri'cs 28 to each;of which'is applied an -eccentric strap 29' having an arm 30 the freeend of which is pivotedzto a'pin 31`between ears 32 erected on the crosspiece 18 carryingthe bearing 14. Rotative movement of `the shaft 26causes a like movement of the cams 28 and a vreciprocatory movement ofthe bearing 14 agreeable to the degree of eccentricity ofithe,eccentrics 28 VIn practice a' few inches reciprocation is -found ample,but the invention is not limited to any ,lparticular amount ofreciprocatory movement.. r'1`he carriage 15, 16 is fed forward a mannerto be describeduntil the cutten head 10 has entered the desired distanceinto the Wall of the tunnel, the motor 24 being at the timeA energizedso as to cause the rotation of the shaft 12. This ro` tary movementofthe shaft 12 is communicated to the worm 21 and the shaft-26 is drivenat a'slower 'speed through the intermediary of the worm gear 25 so thatthe eecentrics 28 are rotated =at a comparatively slowV speed and alikeslow speed' reciprocation is imparted to the bearing 14 and consequentlyto the shaft 12.

Lodged within each side member 1, 2 is 'a rack .frame 33 having rackteeth 34, 35

on the inner facing edges. Each frame 33 is supported at the ends bystuds 36 entering inclined slots 37"'inthe plate 4.

At the rear end each frame 33 is connected by a link. 38 to acorresponding e rockarm 39 onxa rock shaft 40 mounted in journalbearings on the rear end of the casing or frame of the machineandvextending across the same so that the one rock 33. This rock shaftis under the controlof a lever 41 carrying la latch 42 in opera-.

tive relation to' asegment 43 provided with notches for4 engaging thelatch 42 so that the lever 41 mty be'adjusted to different positions/and there locked. v

The arrangement is such that when thev lever 41 is in one position therack frames 33 will be moved forward toward the active end of themachine and because of the inclination of the slots 37 each frame willbe directed toward the' bottom of the correspending side 1, or 2 a thecase may be and when the lever 41l is moved in the opposite directionthe frames 33 will be caused to move upwardly. 'y

At the ends of the shaft 26 within the side membersv 1 and 2 the shaftcarries pinions 44 adapted to engage the racks 34 and 35 of the frames33.

Then the lever 41 is in one position, the

rack 34 is moved into engagement With the pinion 44 of each side of themachine and when the lever is-in the other position opposite to thatfirst assumed 'the rack 35 is in engagement -With the pinion 44 on theopposite sides 'of the machine while when the lever -41 is in'anintermediate position then neither racks 34 nor35 of the twoframes` 33are -in engagement with the pinions 44. s q The front end of the -frameof the machine is mounted upon wheels 45 capable of movement about avertical. axis as Well as upon al horizontal axis, and atthe rear thereis provided a caster wheel 46 mounted upon an elongated stem 47extending through bearings 48 in` the frame df the machine and at theupper end thisstem is threaded as shown at 49 to receive a nut 50 whichmay be turned at willA to elevate or depress the wheel 46 Withnrelationto the frame. a

The vertical adjustment of thejstem 47 permits theraising or lbweri-vxlof'tllie rear end of the machine and consequently the tipping lofthe cutter head( may be raised o`r lowered as necessary. 1 e., .Y ,y

Mounted in the side memberJi?. near the front end thereof is anuprighteshafltl car- 10 lso that it may be found rying a sprocket .wheel52. This 'shaft also carries a toothed Wheel or ratchet v53 havin" itsteeth-movablethroughlaslt-54 in the transport 'the machine fromplace toplace.

the temporarily 'and'b to be `readily removedt erefromhvhen .it isdesired' to fgLet 'it be assumed that the, machine is in .b 'eingtheuleftvhand'ivall to a person at the rearleiitlof the machine andlooking toward 'tl1e:lt r g nt end. During' transportation the'carriagel 1G,V is retracted so that'both this pletely housed withinth'ecasing, so now'the motor 24 is startedivhile-the lever "141 in 15,theff'intermediate/position holding therack carriage 'and 'the'cutterhead'lOfare com frames 33 so that neither the raclrs 3dr nor 155 fareinveiigag'emen't with the pi'nions The action of the AmotorQl 1.. todrivethe shaft 2G in the desired direction and'theniby movtlhe lever 4 1in the proper direction one gf.- with pinions LMaand' Aiffit be assumedthat tlie viewed in` Figs. fl andfl then" thel 'carriage'- 15, 11willbeV nioved"toward the front of the `ffrnachine and thecutterheadj'lO- will be projected,`t he terminal fcutter 1l engaging the coaland boring there-into, this cutter being followed by'tliecutters' on thecutter head 10- thus causing a hole to be ormedin the' coal, thecarriage progressing forwardly inf the meantime.

' ceeding the cutter heafd is givena forward `Wh`ile`this cutting isproand backward movement by the eccentrics 28 so that the cutters do notengage the coal continuously there being a succession of intervals ofrest during which the cutters have -time to cool.- Ultimately thecarriage is moved forwardly until the desired depth of cut has beenproduced, the finger having in the meantime passed by the teeth of thewheel 53 Without actuating' this wheel, the pawl 56 preventing movementof the wheel under the action of the linger in the 'directionconsidered. At the next rearward 'reciprocatory movement of the shaftl2v and parts carried thereby the linger 55 is brought into engagementwith a toothA of the wheel' 53 and the `latter is given apartialrotaticn, this movement being imparted to the shaft 51 and thechain 57 is drawn toward the machine to a commensurate extent. Thisresults in a side movement of the frame of the machine perpendicular tothe longitudinal axis of the cutter head, and' this side movement of themachine takes place while the cutter head is withdrawing from the cutjust producedso that the cutters are at this time idle. N W on the nextforward move ment of the cutter head the cutters are Abrought into sideengagement with the coal and the cut first produced is elongatedhorizontally. This'operation continues uninterruptedly solong as themachine is inthe position` assumed "and the motoz 2 4; ispjrnnning,.themaehine moving laterally until u ltimate'ly ,it approachesclosefenoiigh tothe ,-wall "toward which -itl is moving. Nowhthe .to aposition op first moved sot iat the -other'racks the frames 33, saytheracks 3d areA brought ih to engagementwith the pinions y4 4, (tliisoccurh thecarriage. l5, 1 6, together-with the cutter' 'head :is imoved' l" earfpardly Vuntil .cutter head is entirely; housed in themachine frame.' Now -the lever 41 is moved 'agaix'l` t'o the/ cem cutolalt'er which the bolt-s60. moved from the; Walls of .the tunnel land'the machine-may be moved to another'positi'on, for operatingon the coalini tl1e 1n' i iuier alreadydescribed. 'A

compact, .and lsince itl maybe madedargely bfstructuralmater-ialthemachine is o fsiich light weightfas .toi be readiy moved1 b )Inoperation no moving partsar tien to c0me 'in .contact ,witlrtlie andconsequently, danger yof ,tically eliminated.; f- -f5*'Ih e bottoniloftlieeuttxer substantially horizo'ntal-` andfmdvable' close 'to the floorofthe,tunnehthecutfproduced in the coal .is veryelosetolthef floor'Qfthe tunneland nearly `coincident therewith.

than at the outer wall, thus facilitating the blasting out ot the coalwithless explosives than is necessary. when the cut is'of equal vheightfrom front to back. lsqthe amount the cutter head is ofzsmall sizecomparatively.

The relative proportions of the parts shown in the drawings may bevaried as ing of the drawings is in the most part susceptibleofcha-ngeglwitliout in any manner departing from the salient feaiures'ofthe invention.

The speed of movement of fthe of course vary as desired and consequent]y no particular speed of movement can be given. It may be stated howeverthat with a cutter head of about three 'feet in length,

revolutions per minute and have a recip-4 rocatory movement of 4about 6inches ex- ()f course these amounts are'merely indica tive. and may bechanged as desired.'

-What is claimed is I'.l l na mining machine,a supporting easing, trackstherein at an angle to the bottomV of the casing, said tracks being more:ele-- lever 4l is moved from the centralposition 70 )osite -th a t to;ivh 1chit, was y :ring .in both side-in'er'nbers-l and 2, 'and hen75'tralvA position and" .current to the motor 8.0

ins ss This cut is of less height withinthe coal of coal removed by thecutters is small since desired, it being understood` that the. showiloparts may 115 the cutter headA may rotate at about 250 tent at 'the rateof about six per minute.

vated at the rear o the casing than at the 1.3?

being fixed to the shaft for`. rotation therewith; a transverse shaftjournaled inthe carriage; a pinion upon the transverse shaft meshing-into'the worm; mechanism operl tively `connecting the transverse shaftand the cutter shaft, to secure a longitudinal reciprocation of thelatter; a motor upon'the carriage provided with aV worm disposedtransversely' of the cutter shaft; andan elongated pinion fixed uponthecutter shaft I and meshing slidably into the worm.

`3.l In aminingmachine, a casing; acarri'age mounted for reciprocationtherein; a cutter disposed upon the carriage; means for advancing andretracting the carriage; a shaft journaled for rotation in the casing; aratchet wheel secured to the shaft; a flexible element engaged with theshaft andextend-4 ed through the casing transversely of the` line ofreciprocation of. the carriage, the flexible 'element being terminallyadapted forV connect-ion with fixed supports; and means upon thecarriage to engage the ratchet wh eel when the carriage is retracted.`

4. In a mining machine, a casing; a frame vthe line of reciprocat-ionexible element being :for connection with fixed supports;.a`nd interengaging elements upon the carriage and .upon said shaft, to secure arotation o the -and the casing to impart transverse movement to theframeand to ix the fra-me,

when the frame is moved longitudinally, whereby either rack may bebrought into meshwith the pinion.

5. In a mining machine, a casing; a car` riage mounted for reciprocationtherein; a

'cutter disposed upon the carriage; means for advancing and retractingthe carriage; a shaft journalcd for rotation in the flexible elementengaged with the shaft and casino; a.

extended through thecasing transversely of Y terminally adapted shaftwhen the carriage is retracted.

In testimony that I lclaim the foregoing as my own, I have hereto aiixedmy signa-` ture in the presence o`f two witnesses.

y vLouis F. Hass.

itnesses W. A. SPENCER,

MoLLrn A. MICHAEL.

of the carriage, thel

